CClinicalTrials.gg
TerminatedNCT03258281ISS-DMIIUpdated Jan 19, 2023Results posted

Effects of Evolocumab on Platelet Reactivity in Patients With Diabetes Mellitus

A Phase 4 interventional study of Evolocumab and Placebo in Diabetes Mellitus, Type 2, Dyslipidemia Associated With Type II Diabetes Mellitus and Percutaneous Coronary Intervention, sponsored by Inova Health Care Services. Terminated at 1 site in United States. Per ClinicalTrials.gov, last updated 2023-01-19.

Sponsored by Inova Health Care Services · Phase 4, Interventional, and Prevention

Why this study was terminated
Low enrollment
Phase
Phase 4
Study type
Interventional
Enrollment
4
Allocation
Randomized
Sex
All
01

Study summary

Prospective, single center, double-blind, randomized pharmacodynamic experimental study. The study will enroll 150 subjects with ASCVD on optimal statin therapy as per physician and Diabetes Mellitus (DM) undergoing elective Percutaneous Coronary Intervention (PCI). Eligible patients will be randomized for 30 day treatment to either 1) evolocumab 420 mg ; or 2) placebo.

Read the detailed description

This is a double-blind randomized clinical trial of evolocumab versus placebo in patients with ASCVD and DM on clopidogrel and aspirin undergoing PCI. The study is aimed to assess

  1. the effect of evolocumab therapy on platelet activation and reactivity;
  2. the effect of evolocumab on biomarkers of platelet activation and inflammation.

Eligible patients will be randomized prior to start the PCI equally to either:

  1. 420 mg evolocumab ; or
  2. placebo. The randomized treatment will be administered in subcutaneous injections.

The laboratory assessments will be performed before (baseline), and 16-24 hours and 30-days after randomization.

Subject participation will be 30 days from the randomization.

02

Conditions studied

  • Diabetes Mellitus, Type 2
  • Dyslipidemia Associated With Type II Diabetes Mellitus
  • Percutaneous Coronary Intervention
03

Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Diabetes Mellitus
  • Dyslipidemia
  • Undergoing elective PCI

Exclusion criteria

Exclusion Criteria:

  • Patients with recent Acute Coronary Syndrome (≤1 month)
  • Patients on dual antiplatelet treatment (DAPT) with ticagrelor or prasugrel
  • Patients undergoing urgent/emergent PCI for stent thrombosis
  • Severe acute or chronic medical or psychiatric condition
  • Pregnancy
  • Participation in another experimental clinical trial, without formal approval
  • Unwillingness or inability to comply with the requirements of this protocol
04

Study design

Phase
Phase 4
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Triple (Participant, Care provider, Investigator)
Enrollment
4 participants (actual)

Study arms

  • Active comparator
    evolocumab 420mg

    75 subjects on optimal statin therapy undergoing elective PCI will receive evolocumab 420mg.

    Drug: Evolocumab

  • Placebo comparator
    placebo

    75 subjects on optimal statin therapy undergoing elective PCI will receive placebo

    Drug: Placebo

Interventions

  • DrugEvolocumab

    Patients will receive evolocumab 420 mg administered subcutaneously

    Also known as: Repatha

  • DrugPlacebo

    Patients will receive placebo administered subcutaneously

05

What researchers measure

Primary outcomes

  1. Change From Baseline in Adenosine Diphosphate (ADP) Stimulated P-selectin Expression

    Change from baseline in ADP-stimulated P-selectin expression (% Positive Cells) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo).

    Time frame: Baseline and after 30 days of treatment

Secondary outcomes

  1. Change in ADP-unstimulated P-selectin Expression

    Change in ADP-unstimulated P-selectin expression (% Positive Cells) between treatment groups (420 mg evolocumab treatment and placebo)

    Time frame: Baseline and after 30 days of treatment

  2. Change in ADP-stimulated Lectin-like oxLDL [Oxidized Low-density Lipoprotein] Receptor-1 Mean Fluorescence Intensity (MFI)

    Change in ADP-stimulated LOX-1 (MFI) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo)

    Time frame: Baseline and after 30 days of treatment

  3. Change in ADP-stimulated Cluster of Differentiation (CD)-147 MFI

    Change in ADP-stimulated CD-147 mean fluorescence intensity (MFI) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo)

    Time frame: Baseline and after 30 days of treatment

06

Results

Posted Jan 19, 2023
Limitations and caveats
Study was terminated early as a result of 1) low enrollment and , 2) thrombosis research center moving to another health system (LifeBridge Health) . Only 4 patients were enrolled, as a result we were not able to conduct an analysis on any of the endpoints.

Participant flow

Participant flow — Overall Study
MilestoneEvolocumab 420mgPlacebo
Started31
Completed31
Not completed00

Outcome measures

PrimaryChange From Baseline in Adenosine Diphosphate (ADP) Stimulated P-selectin Expression

Change from baseline in ADP-stimulated P-selectin expression (% Positive Cells) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo).

Time frame:
Baseline and after 30 days of treatment
Reported as:
Mean · % Positive Cells
Change From Baseline in Adenosine Diphosphate (ADP) Stimulated P-selectin Expression
% Positive CellsEvolocumab 420mgPlacebo
Baseline45.2 ± 17.1—
30 Days47.8 ± 18.8—
SecondaryChange in ADP-unstimulated P-selectin Expression

Change in ADP-unstimulated P-selectin expression (% Positive Cells) between treatment groups (420 mg evolocumab treatment and placebo)

Time frame:
Baseline and after 30 days of treatment
Reported as:
Mean · % Positive Cells
Change in ADP-unstimulated P-selectin Expression
% Positive CellsEvolocumab 420mgPlacebo
Baseline5.4 ± 2.7—
30 Days8.8 ± 2.9—
SecondaryChange in ADP-stimulated Lectin-like oxLDL [Oxidized Low-density Lipoprotein] Receptor-1 Mean Fluorescence Intensity (MFI)

Change in ADP-stimulated LOX-1 (MFI) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo)

Time frame:
Baseline and after 30 days of treatment
Reported as:
Mean · MFI
Change in ADP-stimulated Lectin-like oxLDL [Oxidized Low-density Lipoprotein] Receptor-1 Mean Fluorescence Intensity (MFI)
MFIEvolocumab 420mgPlacebo
Baseline1186 ± 1017—
30 Days721 ± 82—
SecondaryChange in ADP-stimulated Cluster of Differentiation (CD)-147 MFI

Change in ADP-stimulated CD-147 mean fluorescence intensity (MFI) as measured by flow cytometry between treatment groups (420 mg evolocumab treatment and placebo)

Time frame:
Baseline and after 30 days of treatment
Reported as:
Mean · MFI
Change in ADP-stimulated Cluster of Differentiation (CD)-147 MFI
MFIEvolocumab 420mgPlacebo
Baseline1459 ± 1220—
30 Days678 ± 148—

Adverse events

Collected over 30 Days. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
Evolocumab 420mg0/3 (0%)1/3 (33.3%)1/3 (33.3%)
Placebo0/1 (0%)0/1 (0%)0/1 (0%)
Most frequent serious events
Most frequent serious events
EventEvolocumab 420mgPlacebo
Chest painCardiac disorders1/30/1
Most frequent other events
Most frequent other events
EventEvolocumab 420mgPlacebo
rashSkin and subcutaneous tissue disorders1/30/1

Baseline characteristics

Age, Continuous
Age, Continuous(years)Evolocumab 420mgPlaceboTotal
Mean70 ± 867 ± 069 ± 7
Sex: Female, Male
Sex: Female, Male(Participants)Evolocumab 420mgPlaceboTotal
Female101
Male213
Race (NIH/OMB)
Race (NIH/OMB)(Participants)Evolocumab 420mgPlaceboTotal
American Indian or Alaska Native000
Asian000
Native Hawaiian or Other Pacific Islander000
Black or African American000
White314
More than one race000
Unknown or Not Reported000
07

Study locations

1 site
  • Inova Fairfax Hospital
    Falls Church, Virginia 22042, United States
08

References and documents

Study documents

  • Protocol and statistical analysis plan · Apr 24, 2018
  • Informed consent form · Jun 19, 2019

Documents are hosted by the registry — open the source record to download them.

09

Registry details

Key details

Study ID
NCT03258281
Lead sponsor
Inova Health Care Services
Responsible party
Sponsor
First posted
Aug 23, 2017
Start date
May 1, 2018
Primary completion
Sep 1, 2019
Completion
Oct 1, 2019
Results posted
Jan 19, 2023
Last update
Jan 19, 2023

Oversight

FDA-regulated drug
Yes
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Dec 2022. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion